摘要
本文报道了小麦秸氨化与精料添加对羔羊生产性能影响的研究结果。麦秸氨化提高了羔羊日增重、秸秆与日粮进食量及精料转化效率,但其提高幅度随日粮精料添加量的提高而减小。提高日粮精料添加水平,羔羊日增重与日粮绝对进食量提高,但精料转化效率在氨化与未氨化组呈不同规律变化:未氨化组持续提高,氨化组呈二次曲线规律变化,且“精料/增重”比最低的日粮精料水平为45%。
A lamb growth trial was conducted to examine effcts of wheat straw ammoniation and concentrate supplementation on lamb performance. The results indicated that straw ammoniation improved Iamb performance: increasing straw and dietary dry matter intake (DMI), average daily gain (ADG) and concentrate conversion efficiency (concentrate/ gain). The improved magnitude, however, tended to decline with the amount of supplemented concentrate increased in lamb diets. Increasing supplemented concentrate levels led to increases in the ADG and the dietary DMI and to a change in the concentrate conversion efficiency with a different pattern for two straw diets; a continuous increase for untreated straw diets, but a quadratic change for ammoniated straw diets with the lowest concentrate consumption per unit gain at the 45% concentrate level.
出处
《畜牧兽医学报》
CAS
CSCD
北大核心
1993年第1期23-28,共6页
ACTA VETERINARIA ET ZOOTECHNICA SINICA
关键词
氨化麦秸
羔羊
饲料
Ammoniated straw, Dietary concentrate level, Lamb performance